package com.heima.behavior.service.impl;

import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApUnlikeBehaviorService;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.UnLikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApUnlikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApUnlikeBehaviorServiceImpl implements ApUnlikeBehaviorService {
    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    /**
     * 保存 或 取消 不喜欢
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult unlikeBehavior(UnLikesBehaviorDTO dto) {

//        1. 校验参数 文章id不能为空  需要登录 不喜欢类型取值为 0 或 1
        if (dto == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID);
        }
        if (dto.getArticleId() == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID, "文章id不能为空");
        }
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "用户需要登录");
        }
        Short type = dto.getType();
        if (type != 0 && type != 1) {
            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW, "不喜欢操作方式只能为0或1");
        }
        ApBehaviorEntry behaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if (behaviorEntry == null) {
            CustException.cust(AppHttpCodeEnum.SERVER_ERROR);
        }
//        2. 查询行为实体数据
        Query query = Query.query(Criteria.where("articleId").is(dto.getArticleId())
                .and("entryId").is(behaviorEntry.getId()));
        ApUnlikesBehavior unlikesBehavior = mongoTemplate.findOne(query, ApUnlikesBehavior.class);


        if (dto.getType() == 0) {
            //  3. 如果是 不喜欢操作 查询不喜欢行为是否存在
            if (unlikesBehavior == null) {
                //  4. 如果不存在   添加不喜欢行为
                ApUnlikesBehavior apUnlikesBehavior = new ApUnlikesBehavior();
                apUnlikesBehavior.setEntryId(behaviorEntry.getId());
                apUnlikesBehavior.setArticleId(dto.getArticleId());
                apUnlikesBehavior.setType((short) 0);
                apUnlikesBehavior.setCreatedTime(new Date());
                mongoTemplate.save(apUnlikesBehavior);
                return ResponseResult.okResult(apUnlikesBehavior);
            } else {
                // 如果已经存在
                CustException.cust(AppHttpCodeEnum.DATA_EXIST, "只能不喜欢一次");
            }
        }
        // 5. 如果是 取消不喜欢操作  删除对应的不喜欢数据
        if (dto.getType() == 1) {

            // 如果已经存在,删除对应的不喜欢数据
            mongoTemplate.remove(query, ApUnlikesBehavior.class);
            return ResponseResult.okResult();
        }
        return null;
    }
}